Not to go off on a complete tangent, but...
>... like the infamous Duff Beer joke being out of frame in The Simpsons.
My collection of The Simpsons, seasons 1-13, are all TV rips from waaaaayyyyy back in the 00's. Sure, it's not super high-quality, but at least they don't look like the ugly remasters (on some of the ones I've tried watching on Disney+, they look like someone's drawn over the old cells), the aspect ratio is the original so nothing's missing and, as a personal bonus, they've got the old Q13 logo in the bottom (I grew up in western WA). They still look great on my newer TV.
Edit: Oh, and the Michael Jackson episode never suddenly disappeared from my library.
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This is the key, streaming content providers delete and edit things to match the feeling of society at the moment or perceived societal pressures. Really not how history should work imho
To me it is the difference between art and product.
A show like The Simpsons is both. The viewers care about the art, and we tolerate the product to get it. The creators are creating art, compromising with the corporation and broadcaster to make it enough of a product. But the corp/broadcaster only care about the product. The art is the chocolate around the advertising pill.
So when the product-minded people control preservation and resharing of the product, the art always gets compromised. Jokes are clipped. Audio is broken. Episodes are pulled. For all the wrong reasons.